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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ZOOKEEPER-3039) TxnLogToolkit uses Scanner badly
Date Wed, 09 May 2018 23:22:00 GMT

    [ https://issues.apache.org/jira/browse/ZOOKEEPER-3039?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16469663#comment-16469663

Hadoop QA commented on ZOOKEEPER-3039:

-1 overall.  GitHub Pull Request  Build

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 3 new or modified tests.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    -1 findbugs.  The patch appears to cause Findbugs (version 3.0.1) to fail.

    +1 release audit.  The applied patch does not increase the total number of release audit

    -1 core tests.  The patch failed core unit tests.

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-ZOOKEEPER-github-pr-build/1670//testReport/
Console output: https://builds.apache.org/job/PreCommit-ZOOKEEPER-github-pr-build/1670//console

This message is automatically generated.

> TxnLogToolkit uses Scanner badly
> --------------------------------
>                 Key: ZOOKEEPER-3039
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3039
>             Project: ZooKeeper
>          Issue Type: Bug
>    Affects Versions: 3.5.4, 3.6.0
>            Reporter: Andor Molnar
>            Assignee: Andor Molnar
>            Priority: Major
> If more than 1 CRC error is found in the Txn log file, TxnLogToolkit fails to get an
answer for the second one, because it has already closed the Scanner which was probably closed
the input stream also, so exception is thrown:
> {noformat}
> ZooKeeper Transactional Log File with dbid 0 txnlog format version 2
> CRC ERROR - 4/5/18 5:16:05 AM PDT session 0x16295bafcc40000 cxid 0x1 zxid 0x100000002
closeSession null
> Would you like to fix it (Yes/No/Abort) ? y
> CRC ERROR - 4/5/18 5:17:34 AM PDT session 0x26295bafcc90000 cxid 0x0 zxid 0x200000001
closeSession null
> Would you like to fix it (Yes/No/Abort) ? Exception in thread "main" java.util.NoSuchElementException
> at java.util.Scanner.throwFor(Scanner.java:862)
> at java.util.Scanner.next(Scanner.java:1371)
> at org.apache.zookeeper.server.persistence.TxnLogToolkit.askForFix(TxnLogToolkit.java:208)
> at org.apache.zookeeper.server.persistence.TxnLogToolkit.dump(TxnLogToolkit.java:175)
> at org.apache.zookeeper.server.persistence.TxnLogToolkit.main(TxnLogToolkit.java:101){noformat}

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